“Just what does this job 'involve'?” “It 'involves' [='entails'] traveling and a lot of overtime.”
No one knew of their romantic 'involvement'. [=no one knew that they had a romantic relationship]
The accident 'involved' three cars. = Three cars were 'involved' in the accident.
(..) and the weight forms and it goes: And splinter unit, we are there to do a lot of shots that Peter don't have time to do. And it's a lot of shots that involve sometimes action. So stunts or sometimes just insert of picking up a sword or... The biggest part of our day today was getting (..)2012 The Hobbit: An Unexpected Journey