Maryland Laws

It's illegal to mistreat oysters. Oral sex can not be given or received anywhere.

Thistles may not grow in one's yard.
In Baltimore - It's illegal to take a lion to the movies.
In Baltimore - No person who is a "tramp" or "vagrant" shall loiter in any park at any time.
In Cumberland - It is illegal to use profane language on a playground.
In Rockville - Persons may not swear while on the highway.
In Rockville - It is illegal to remove a public building by writing on it.

http://www.weirdfacts.com/weird-state-laws/39-weird-maryland.html

Movie & TV Production Spotlight 
2010-2011: 9 key projects were filmed in the state, including 8 films and 1 TV series. Movies 

include: Dead Money, The Brooklyn Brothers Beat the Best, The Haunting of Pearson Place, I Am Ben, The Possession, The Wereth Eleven, and Learning Uncle Vincent. TV: Ace of Cakes.
Production Incentive: 
Maryland’s film production incentives include a refundable tax credit of 25% for films and 27% for TV series on eligible production-related expenditures, including wages. The program requires a minimum in-state spend of $500,000 and requires that 50% of principal photography occur in Maryland.
http://www.mpaa.org/policy/state-by-state