1 The film first came out in 1980/1985 2 In the film, Marty travels from the 1950s to the 1980s / 1980s to
the 1950s.
3 In the theatre production, Marty travels from 2015 to the 1980s /
1950s.
4 The theatre production focuses on life now / in the past.
5 David's parents were teenagers in the 1950s 1980s.
6 Teenagers were / weren't interested in the same things in the
1980s as they are now.
7 There were / weren't any touchscreens in the 1980s.
8 The presenter has / hasn't seen the show.