I'm not 100% sure if it was reported before or maybe if it's only affecting me. The movies between missions are laggy and more of a slideshow for me. If I acces them through extras in the main menu they play just fine. I don't know why it's happening between missions then. My rig and game settings:

Asus Notebook K72Jk Series
Ati Mobility Radeon HD5145 1Gb (Newest drivers)
4Gb RAM
Intel Core i3 M350 2.27GHz
Windows 7 Home Premium 64bit

Running game on high settings and 1280x720 res (fullscreen, v-sync on)

Any ideas?