You might find it useful to search YouTube.com for movies about Beckett himself as well as videos of some of his plays. For example there is a very interesting 2000 version of Endgame with Michael Gambon and David Thewlis. Other videos include:
Many other potentially useful videos on Beckett and his work may be found on YouTube.com.
Holmes
Search the Holmes catalog for films about Beckett and his works. Type SAMUEL BECKETT in a Holmes search box; select Author/Creator in the pull-dowm menu to the left of the search box; and then select Films &Video & Movies in the pulldown menu on the right