Park conservationists in Chicago, Illinois have filed suit in a bid to block Star Wars creator George Lucas' plans to build a massive art museum beside Lake Michigan.

City bosses won the chance to house the movie mogul's impressive collection of Star Wars memorabilia and Hollywood artefacts in the $700 million (£438 million) Lucas Museum of Narrative Art in June (14).

Lucas, who is funding the construction with a portion of the $4 billion fortune he received from the sale of his Star Wars empire to Disney, had hoped to build the museum near Chicago's Soldier Field sports mecca, but members of the local parks advocacy group, Friends of the Parks, are now urging the filmmaker to find another spot.

They filed suit against city bosses and officials at the Chicago Park District on Thursday (13Nov14), claiming the planned construction breaks park rules that stipulate the lakeside must remain open.

Friends of the Parks president Cassandra Francis alleges members have no problem with the museum itself, but they don't want it built along the waterfront.

It's the second time Lucas has faced opposition to his waterfront plans - city officials in San Francisco, where he originally dreamed of locating the museum, refused to let him take over the picturesque site he had initially picked out there.

The museum is scheduled to open in 2018.