Do the biopic-ized people get paid for being represented in their respective biopic movies?

The rights issue is still fairly murky.
If a program or film is deemed 'newsworthy' (ie documentary) then less rights need to be secured (although privacy copyrights are still in effect and do need to cleared before presentation).

Biopics like Ed Wood, despite being based on a real person, are considered 'fictional entertainment' and thus do not require clearance from the family unless real photos/sounds are used.

In some cases, biopics can be halted - for example, the Amy Winehouse project that has been stalled because her father has refused to release the rights to her music.