Key points
General information
Download it here
A "flexible patcher" which unlocks many game hidden features
<path-to-game>\fmv\
Fmv00.bik
OpenTomb is an open source remake of the Tomb Raider engine. It overhauls almost all aspects of the game engine, along with adding cross-platform support for modern operating systems and Lua scripting support.
Important links regarding the project:
binkw32.dll
Download and install the Tomb Raider series fullscreen border fix.