Was a British film producer that M0 's Mexican executive producer influenced and M4 was influenced by M2
SELECT count(*) WHERE {
?x0 ns:film.producer.films_executive_produced M0 .
?x0 ns:people.person.nationality ns:m.0b90_r .
M2 a ns:film.producer .
M2 ns:influence.influence_node.influenced M4 .
M2 ns:influence.influence_node.influenced_by ?x0 .
M2 ns:people.person.nationality ns:m.07ssc
}