This should give you something to work with:

Sub Combine()
 Dim src As Document
 Dim dest As Document
 Dim para As Paragraph
 Dim titles As Collection
 
 ' open the titles document in the background
 Set src = Application.Documents.Open(FileName:="MovieTitles.doc", Visible:úlse)
 
 ' initialize a new collection to hold titles
 Set titles = New Collection
 ' iterate through the paragraphs (lines) of the titles document
 For Each para In src.Paragraphs
   With para.Range
     ' apply the desired formatting
     .Bold = True
     .Font.Color = wdColorBlue
     ' add the formatted paragraph (line) to the collection, keying on the unformatted text
     Call titles.Add(.FormattedText, .Text)
   End With
 Next para
 ' close the titles doc, discarding changes
 Call src.Close(False)
 
 ' open the info doc in the background
 Set src = Application.Documents.Open(FileName:="MovieInfo.doc", Visible:úlse)
 
 ' open the destination document in the foreground
 Set dest = Application.Documents.Add(Visible:=True)
 
 ' iterate through the paragraphs of the info doc
 For Each para In src.Paragraphs
   With para.Range
     ' see if there's a match with a title
     If Not titles(.Text) Is Nothing Then
       ' if there is a match, insert the formatted title into the dest doc
       Call dest.Range.InsertAfter(titles(.Text))
       ' followed by the next paragraph from the info doc, which should be the info
       Call dest.Range.InsertAfter(para.Next.Range.FormattedText)
     End If
   End With
 Next para
 ' close the info doc, discarding changes
 Call src.Close(False)
 
 ' make sure the dest doc is in the foreground
 Call dest.Activate
 
 ' cleanup
 Set titles = Nothing
 
End Sub

It assumes that the layouts of the two documents are exactly as you described, and doesn't apply too much formatting.
You might be able to copy over para.Next instead of para.Next.Range.FormattedText, not sure.
I haven't tested this sub at all, but it should give you a starting point.
Let me know how it works.

hth,

-Peter