As per the Munse; Gremlins. It's a Wonderful Life as well. And Bridget Jones's Diary. For more modern, sickeningly clichéd bollocks; Love, Actually. The Holiday.
It don't go with the OP, but... A Christmas Carol - BBC Iplayer I can't remember how many hour long episodes but maybe 3 - This twist of it is by the creator of Peaky Blinders. Well worth a watch, if you are looking for something with a bit more of a serious tale.