YOU SAID:

We all went to the movies to the what was happening

INTO JAPANESE

何が起こっていたに映画を見に行きました

BACK INTO ENGLISH

What's going on I went to see the movie was

INTO JAPANESE

映画を見に行った私に起こっていた

BACK INTO ENGLISH

I went to see the movie was going on

INTO JAPANESE

私は映画が起こっていたのを見に行きました

BACK INTO ENGLISH

I went to see the movie was going on