Movie scene with young girl and frozen lake

I cannot remember full movie or plot details other than scene where young girl is in a car at a frozen lake. She is with her father or possible body guards - seems like in Russia or mafia type scene. Car goes into lake but she survives; however, fakes death. Seems like they were then on the run. The scene may be a flashback. Seems like there was also a young boy who was on a school bus maybe a field trip or something. Appreciate any insight!