Stock index futures pointed to a higher open on Wall Street on Tuesday, with futures for the S&P 500 up 0.21 percent, Dow Jones futures up 0.21 percent and Nasdaq 100 futures up 0.15 percent.

Time Warner Inc , Lions Gate Entertainment Corp and billionaire Len Blavatnik's Access Industries put up rival bids of $1.2 billion to $1.5 billion for studio Metro-Goldwyn-Mayer, sources familiar with the matter told Reuters late on Monday.

Toyota Motor Corp <7203.T> has lifted its global production plans by 1 percent to 7.57 million vehicles for 2010, anticipating better demand in Japan and other Asian markets, a source at a group company said on Tuesday.

Google has not violated the rights of luxury goods maker Louis Vuitton and two other firms by allowing online advertisers to buy search keywords identical to trademarks, Europe's top court said.

Oil slipped toward $81 a barrel on Tuesday, under pressure as the dollar firmed ahead of a European Union summit to discuss Greece's debt crisis.

After the bell on Monday, shares of Wendy's/Arby's Group Inc rose 1.7 percent to $4.76 after the company announced an increase in its stock repurchase authorization, while shares of Massey Energy fell 3.1 percent to $49.25 in extended trade after the firm said it intends to offer 8.5 million shares of common stock.

Companies scheduled to report quarterly results on Tuesday include Adobe Systems , Jabil Circuit , Walgreen and Darden Restaurants , while Tuesday's economic diary includes February existing home sales and January FHFA House Price Index.

European stocks were up 0.8 percent in morning trade, reversing recent losses, led by banks and miners such as Banco Santander and Rio Tinto .

U.S. stocks rose on Monday, building on last week's strength, as the passage of a bill overhauling the healthcare system ended much of the uncertainty for investors. While some analysts raised concerns the bill, approved on Sunday, could squeeze company profits and add to costs, they said much of the negative impact was already priced in.

The Dow Jones industrial average <.DJI> was up 43.91 points, or 0.41 percent, at 10,785.89. The Standard & Poor's 500 Index <.SPX> was up 5.91 points, or 0.51 percent, at 1,165.81. The Nasdaq Composite Index <.IXIC> was up 20.99 points, or 0.88 percent, at 2,395.40.

(Reporting by Blaise Robinson; Editing by Erica Billingham)