The Allies bombed France on hundreds of occasions.

There were strategic raids throughout the war. Perhaps most famously, starting in 1944 there was the "Transport Plan." This featured massive and continuing assaults on the rail (and road) networks in France anywhere near Normandy. These attacks made it very difficult for the Germans to move any units via railroads, forcing them to try road movement. With the Allies increasingly gaining control of the air over France through 1944, such movement become very costly at any time other than night.

The raids on rail networks were supplemented with standard strategic raids, especially on transportation hubs. I can't speak to the fate of Seine-Et-Marne in particular, but it was seen as necessary to bomb the French cities to try to isolate the invasion beaches as much as possible. Given the difficulties the Germans faced in moving their troops both before and after the invasions, it is difficult to conclude anything other than that the Allies were effective in their efforts to snarl transportation in France overall, especially in the north. I can't say Seine-Et-Marne was part of that effort, but I can assure you that many French cities were bombed by the Allies.

To my knowledge, there were numerous raids conducted in France by the RAF and USAAF during WW2. Generally, both the RAF and the USAAF went to greater pains to minimise civilian casualties during raids, to the extent that the RAF sent 617 squadron (the dambusters) to attack the Michelin tyre factory in 1943.

From the period of time that the movie is placed, it seems likely that the raids you are referring to were to disrupt transport in the area to slow down German movements.

Of interest, is Operation Jericho which was a raid conducted against Amiens Prison in early 1944.