I use the film viewer a lot to make pictorials for scenarios. Here are some bugs as of Film Viewer v2.17 patch 3.
-- Ships often do not appear in correct location in film (compared to where they really were when flying in the game).
-- Smoke trails, explosions, damage effects, water trails, etc. do not disappear when rewinding.
-- "FOV" slider does not work properly. Unable to zoom field of view in and out except when in internal view using the z, [, and ] keys.
-- View and action often are not recorded when in a ground gun or ship gun.
-- Position of the sun continues to march ahead at normal rate of real time when the film is slowed down slower than real time. (Can result, if you take a lot of time to set up a shot, with the shot appearing much later in the day then what was happening in the game as you played it. Is most noticeable in scenarios with the sun moving much faster than real time.)
