My Horrible XML Schema File

movies.xsd

<?xml version="1.0" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

<!-- Structure -->
<xs:element name="movieReviews">
    <xs:complexType>
        <xs:sequence>
        <!--Movies-->
            <xs:element name="movies">

                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="movie" maxOccurs="unbounded">
                            <xs:complexType>
                                <xs:sequence>
                                    <xs:element name="title" type="xs:string"/>
                                    <xs:element name="releases">
                                        <xs:complexType>
                                            <xs:sequence>
                                                <xs:element name="release" maxOccurs="unbounded">
                                                    <xs:complexType>
                                                        <xs:simpleContent>
                                                            <xs:extension base="xs:date">
                                                                <xs:attribute name="country" type="xs:string"/>
                                                            </xs:extension>
                                                        </xs:simpleContent>
                                                    </xs:complexType>
                                                </xs:element>
                                            </xs:sequence>
                                        </xs:complexType>
                                    </xs:element>

                                    <xs:element name="MPAA">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:string">
                                                <xs:enumeration value="U" />
                                                <xs:enumeration value="PG" />
                                                <xs:enumeration value="12" />
                                                <xs:enumeration value="15" />
                                                <xs:enumeration value="18" />
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:element>

                                    <xs:element name="genre" type="xs:string" maxOccurs="3" />

                                    <!-- types should really by ints -->
                                    <xs:element name="director" type="xs:string" />
                                    <xs:element name="producer" type="xs:string" />
                                    <xs:element name="actors">
                                        <xs:complexType>
                                            <xs:sequence>
                                                <xs:element name="actorID" type="aIDType" maxOccurs="unbounded"/>
                                            </xs:sequence>
                                        </xs:complexType>
                                    </xs:element>

                                    <xs:element name="awards" minOccurs="0">
                                        <xs:complexType>
                                            <xs:sequence>
                                                <xs:element name="award" maxOccurs="unbounded">
                                                    <xs:complexType>
                                                        <xs:sequence>
                                                            <xs:element name="name" type="xs:string" />
                                                            
                                                            <xs:element name="status">
                                                                <xs:simpleType>
                                                                    <xs:restriction base="xs:string">
                                                                    <xs:enumeration value="Nominated" />
                                                                    <xs:enumeration value="Won" />
                                                                    </xs:restriction>
                                                                </xs:simpleType>
                                                            </xs:element>
                                                            
                                                            <xs:element name="type" type="xs:string" />
                                                            <xs:element name="awardaID" type="aIDType" minOccurs="0" />
                                                            <xs:element name="year" type="xs:gYear" />
                                                        </xs:sequence>
                                                    </xs:complexType>
                                                </xs:element>
                                            </xs:sequence>
                                        </xs:complexType>
                                    </xs:element>
                                </xs:sequence>
                            </xs:complexType>
                        </xs:element>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>

            <!-- People -->
            <xs:element name="people">
                <xs:complexType>
                    <xs:sequence>
                        <xs:element name="person" maxOccurs="unbounded">
                            <xs:complexType>
                                <xs:sequence>
                                    <xs:element name="name" type="xs:string"/>
                                    <xs:element name="profession" type="xs:string" maxOccurs="unbounded"/>
                                    <xs:element name="age" type="xs:nonNegativeInteger"/>
                                    <xs:element name="gender">
                                        <xs:simpleType>
                                            <xs:restriction base="xs:string">
                                                <xs:enumeration value="male"/>
                                                <xs:enumeration value="female"/>
                                            </xs:restriction>
                                        </xs:simpleType>
                                    </xs:element>
                                </xs:sequence>
                                <xs:attribute name="aID" type="aIDType" use="required" />
                            </xs:complexType>
                        </xs:element>
                    </xs:sequence>
                </xs:complexType>
            </xs:element>
        </xs:sequence>
    </xs:complexType>
    <xs:key name="actorKey">
        <xs:selector xpath="movieReviews/people/person"/>
        <xs:field xpath="@aID" />
    </xs:key>
    <xs:keyref name="actorRef" refer="actorKey">
      <xs:selector xpath="movieReviews/movies/movie/actors"/>
      <xs:field xpath="actorID"/>
    </xs:keyref>
    <xs:keyref name="actAwardRef" refer="actorKey">
      <xs:selector xpath="movieReviews/movies/movie/awards/award"/>
      <xs:field xpath="awardaID" />
    </xs:keyref>
    <xs:keyref name="directorRef" refer="actorKey">
      <xs:selector xpath="movieReviews/movies/movie"/>
      <xs:field xpath="director" />
    </xs:keyref>
    <xs:keyref name="prodRef" refer="actorKey">
      <xs:selector xpath="movieReviews/movies/movie"/>
      <xs:field xpath="poducer" />
    </xs:keyref>
</xs:element>
    <xs:simpleType name="aIDType">
        <xs:restriction base="xs:string">
          <xs:pattern value="[A][0-9]*" />
        </xs:restriction>
    </xs:simpleType>
</xs:schema>