The Black Hole Wars Resume film is very a very entertaining film, and it presents the information paradox problem in a way that is clear and understandable. The argument that opposes the solution proposed by Leonard Susskind is made well but suffers form a bit of complexity in the presentation. The writer was convinced even though the reasoning seemed a bit too complicated.
The symmetry argument is unnecessary in this writers opinion because the idea that there can be two different realities at the same time is so obviously absurd that one does not need to belabor the point by the argument as presented by Wince. This viewer was convinced that the Susskind argument was false before viewing this film however, so my opinion does not reflect well regarding how an actual mainstream physicist would react.
As far as a informed layman is concerned, the argument should be convincing to him. But I don’t think that the argument is going to be won by convincing educated laymen.