year film publisher director distributor worldwide gross notes
year
film
publisher
director
distributor
worldwide gross
notes
number
first second first_number
number text text text text unitnum(text) text
1951 superman and the mole men dc comics lee sholem lippert pictures inc $1,700,000 (est.
us/ canada rentals) based on adventures of superman tv series
what is the number of live action american superhero movies released in 1978 ?
WP VBD-AUX DT NN IN JJ NN JJ NN NNS VBN IN CD .
3
select count ( c2 ) from w where c1_number = 1978