(CNN) -- Actor Wesley Snipes reported to a medium-security Pennsylvania prison Thursday to begin a three-year sentence for failing to file tax returns.
The 48-year-old actor is now incarcerated in McKean Federal Correctional Institution in Lewis Run, officials said.
Snipes' attorney said he is appealing his client's misdemeanor convictions for not filing tax returns in 1999, 2000 and 2001.
"We still have prayers out there. We still believe in miracles. So don't send me up the river yet," Snipes said in an interview on CNN's "Larry King Live" Tuesday night.
The actor conceded he was uneasy about losing his freedom if his appeal to the U.S. Supreme Court fails.
"I think any man would be nervous if his liberty is at stake," Snipes said. "I'm disappointed that the system seems not to be working for me in this situation."
Prosecutors said Snipes earned $40 million since 1999 but had filed no returns and had been involved in a tax resisters group.
Snipes disputed such involvement and said that the failure to file was his advisers' fault.