Lets loose with film excerpts on international forum (7)

'lets loose' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?

'film excerpts on international forum' is the wordplay.
I cannot quite see how this works, but
'excerpts' could be 'clips' (I've seen this in another clue) and 'clips' is located in the answer.
'international' could be 'un' (I've seen this in other clues) and 'un' is found within the answer.
No letters remain.
This explanation may well be incorrect...

'with' is the link.

Can you help me to learn more?