Was M3 a cinematographer whose British spouse influenced M0 and M1
SELECT count(*) WHERE {
?x0 ns:influence.influence_node.influenced M0 .
?x0 ns:influence.influence_node.influenced M1 .
?x0 ns:people.person.nationality ns:m.07ssc .
FILTER ( M3 != ?x0 ) .
M3 a ns:film.cinematographer .
M3 ns:people.person.spouse_s/ns:people.marriage.spouse|ns:fictional_universe.fictional_character.married_to/ns:fictional_universe.marriage_of_fictional_characters.spouses ?x0
}