I have zero expertise however this may be the loophole you are interested in...
COPYRIGHT ACT 1968 - SECT 41A
Fair dealing for purpose of parody or satire
A fair dealing with a literary, dramatic, musical or artistic work, or with an adaptation of a literary, dramatic or musical work, does not constitute an infringement of the copyright in the work if it is for the purpose of parody or satire.
Copywrite Act.