I haven't sat down to watch Film4 since opening night. I can't stand ads breaking up my movies 
How right you are. FilmFour used to be the No. 1 Movie channel when it cost 9 Euro a month. No ads and movies shown in proper widescreen 2.35:1 aspect ratio as required. Now, as a Freeview channel, it's all ads and many if not all 2.35:1 movies shown only in 16:9. And they still claim to be THE movie channel - rubbish.
As a matter of interest did they relent and show Dynamite in 2.35:1?